First you pay the boat fare then you have to pay entrance fee to the island. You can snorkeling by yourself. My boat operator provide me with the goggles free of charge

I have been to Sapi and Manukan. Sapi better than Manukan. Skip Manukan definitely its sea full of rubbish.

Anazurah, camping and camp fires is allowed with the permission of Park Warden..this is confirm and hope it answers your question on the islands of Tengku Abdul Rahman Park

For camper, the park imposes a small Camping Fee of RM5 (≈US$1.50) for adult and RM2 (≈US$0.60) for child (below 18). Please be informed that you need to pay additional RM50 (≈US$15) to boat operator for next-day pickup. Camping tent (fit 4 people) is available for rent at RM30/day (≈US$9/day) on the island. The island shops close at 4pm, so you better take out your belonging from locker or buy your last-minute supply such as food before they close. You may also call the respective Island Tour management at Jesselton Point Ferry Terminal for further info on latest price. Their boat service can start as early as 7:30am in weekends, but the boat only moves after it’s full with passengers (about 10 to 12 people). If you go in big group, you can negotiate for discount. Their fares are the cheapest so most people use their boat service to visit islands off KK.

If you plan coming to here, you can reservation from Kota Kinabalu Budget Tour with affordable price & responsiblety to you vacation, also can give you free pickup service from hotel to jetty. For more information please call/watspp +60168476409 or you can visit FB kota kinabalu Budget Tour

You book for the Coral Flyer when you get to Sapi island at the reception desk.

You book for the zipline when you get to Sapi at the reception desk.

Available on the spot. Don't book in advance as you'll get overcharged.

Sorry for the late reply. I believe it is, but you need to book it in advance

Yes Sapi is small island, it is one day trip. a recommend going to at morning and to back on 15:00 or 16:00 is the last boat.